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|
package log
import (
"encoding"
"fmt"
"strconv"
"strings"
)
type Level struct {
rank int
}
var (
Never = Level{-1} // A message at this level should never be logged.
NotSet = Level{0}
Debug = Level{1}
Info = Level{2}
Warning = Level{3}
Error = Level{4}
Critical = Level{5}
disabled = Level{6} // It shouldn't be possible to define a message at this level.
)
func (l Level) isNotSet() bool {
return l.rank == 0
}
func (l Level) LogString() string {
switch l.rank {
case NotSet.rank:
return "NIL"
case Debug.rank:
return "DBG"
case Info.rank:
return "INF"
case Warning.rank:
return "WRN"
case Error.rank:
return "ERR"
case Critical.rank:
return "CRT"
default:
return strconv.FormatInt(int64(l.rank), 10)
}
}
func (l Level) LessThan(r Level) bool {
if l.rank == NotSet.rank {
return false
}
return l.rank < r.rank
}
var _ encoding.TextUnmarshaler = (*Level)(nil)
func (l *Level) UnmarshalText(text []byte) error {
switch strings.ToLower(string(text)) {
case "nil", "notset", "unset", "all", "*":
*l = NotSet
case "dbg", "debug":
*l = Debug
case "inf", "info":
*l = Info
case "wrn", "warning", "warn":
*l = Warning
case "err", "error":
*l = Error
case "crt", "critical", "crit":
*l = Critical
default:
return fmt.Errorf("unknown log level: %q", text)
}
return nil
}
|
